Power Factor is the ratio of real power (kW) to apparent power (kVA) in an electrical system. It indicates how efficiently electrical power is being used.
PF Correction
PF Correction
At PurityElec, we deliver Reactive Power Generator (RPG) solutions that provide real-time, dynamic Power Factor Correction without the limitations of conventional capacitor banks. Our technology is designed for industries and facilities that require precise, fast, and maintenance-free power factor management.
What is Power Factor Correction?
Power Factor Correction improves the ratio between active power (kW) and apparent power (kVA) in your electrical system.
A low power factor causes:
A low power factor causes:
- • Higher electricity bills due to utility penalties
- • Unnecessary loading of transformers and cables
- • Reduced system efficiency and voltage drops
- • Overheating and premature wear of equipment
By installing an RPG system, PurityElec ensures your power factor remains close to unity (1.0) at all times.
Why RPG Instead of Conventional Methods?
Traditional PF correction methods (like fixed capacitors or APFC panels) have slow response times and can’t handle highly dynamic loads effectively.
RPG Advantages:
RPG Advantages:
• Instant Response – Corrects power factor within milliseconds
• Dynamic Adjustment – Handles rapidly changing load profiles
• No Resonance Risk – Eliminates harmonic amplification
• Low Maintenance – No capacitor banks to fail or degrade
• Space-Saving Design – Compact and modular
Applications of RPG Technology
• Manufacturing Plants
• Data Centers
• Commercial Complexes
• Hospitals & Healthcare Facilities
• Renewable Energy Systems
• Power-Intensive Industries
Benefits of RPG Power Factor Correction
• Avoid Utility Penalties – Maintain near-unity PF at all times
• Free Up Capacity – Reduce current flow and release transformer capacity
• Improve Voltage Stability – Better performance for sensitive equipment
• Reduce Energy Losses – Minimize heat and resistive losses in distribution lines
• Long-Term Reliability – Solid-state technology with minimal wear and tear
Our Process
1. Power Quality Audit – Analyze current PF and load patterns.
2. Customized RPG Solution – Size and configure the system to your needs.
3. Installation & Integration – Minimal downtime with quick commissioning.
4. Continuous Support – Remote monitoring and performance tracking.
PurityElec combines advanced RPG technology with expert engineering to deliver unmatched Power Factor Correction performance.
With our solutions, you’ll experience lower costs, higher efficiency, and a healthier electrical network.
With our solutions, you’ll experience lower costs, higher efficiency, and a healthier electrical network.
Frequently Asked Questions
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Q1. What is Power Factor (PF)?
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Q2. Why is Power Factor important?A low power factor means more current is drawn for the same load, leading to:
- • Higher electricity bills (kVA demand charges)
- • Overloading of transformers, cables, and switchgear
- • Increased losses and reduced system efficiency
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Q3. What is PF correction?PF correction is the process of improving the power factor of an electrical system, usually by adding capacitors, reactive power generators (RPG), or synchronous condensers to supply reactive power locally.
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Q4. What causes low power factor?
- • Inductive loads (motors, pumps, compressors, HVAC systems)
- • Welding machines, induction furnaces
- • Fluorescent lighting
- • Non-linear loads (VFDs, UPS, rectifiers)
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Q5. What are the problems due to low power factor?
- • Higher electricity costs due to kVA demand penalties
- • Overheating of equipment
- • Voltage drops in the network
- • Reduced capacity of transformers and cables
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Q6. How can PF be corrected?
- • Capacitor Banks: Provide reactive power locally, simple and economical.
- • Automatic Power Factor Correction (APFC) Panels: Adjust capacitor steps automatically as per load variation.
- • Detuned Capacitors: Used when harmonics are present, to avoid resonance.
- • Reactive Power Generators (RPG) / Active Power Factor Correction: Dynamic and precise compensation, suitable for industries with variable loads.
- • Synchronous Condensers: Rotating machines providing reactive power (rare in modern systems).
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Q7. What is the difference between fixed capacitors and APFC panels?
- • Fixed capacitors: Always connected, suitable for constant loads.
- • APFC panels: Switch capacitor banks in and out automatically based on load variation, ideal for industries with fluctuating loads.
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Q8. Can PF correction eliminate harmonics?Not always. Standard capacitors can worsen harmonics (resonance risk). In such cases, detuned capacitors or Active Harmonic Filters (AHF) are recommended.
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Q9. What is the recommended power factor level?Most utilities require PF of 0.90–0.95 lag or higher. Many countries (including India) provide incentives for maintaining PF near unity and penalties for low PF.
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Q10. How do I know if I need PF correction?
- • Check utility bills for PF penalties
- • Monitor PF on energy meters or analyzers
- • Conduct an Energy or Power Quality Audit to measure PF across loads
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Q11. What are the benefits of PF correction?
- • Reduced electricity bills (avoid penalties, lower demand charges)
- • Increased capacity of existing transformers and cables
- • Improved voltage stability
- • Reduced losses and heating in equipment
- • Longer equipment life and better efficiency
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Q12. Is PF correction cost-effective?Yes. The payback period is often less than 1–2 years due to savings in penalties, reduced losses, and improved system reliability.